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Adaptive Development (2005)

Author: NON
Subject: ROUTES; COMMERCIAL AIRCRAFT; AIRLINE OPERATIONS; AIR TRAFFIC; DIMENSIONAL ANALYSIS; AIR TRANSPORTATION; ECONOMICS; POLICIES; SELECTION; CIVIL AVIATION
Year: 2005
Language: English
Book contributor: NASA
Collection: nasa_techdocs

Description

The goal of this research is to develop and demonstrate innovative adaptive seal technologies that can lead to dramatic improvements in engine performance, life, range, and emissions, and enhance operability for next generation gas turbine engines. This work is concentrated on the development of self-adaptive clearance control systems for gas turbine engines. Researchers have targeted the high-pressure turbine (HPT) blade tip seal location for following reasons: Current active clearance control (ACC) systems (e.g., thermal case-cooling schemes) cannot respond to blade tip clearance changes due to mechanical, thermal, and aerodynamic loads. As such they are prone to wear due to the required tight running clearances during operation. Blade tip seal wear (increased clearances) reduces engine efficiency, performance, and service life. Adaptive sealing technology research has inherent impact on all envisioned 21st century propulsion systems (e.g. distributed vectored, hybrid and electric drive propulsion concepts).

Creative Commons license: Public Domain

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Selected metadata

Identifier:	nasa_techdoc_20050156897
Document-source:	CASI
Documentid:	20050156897
Nasa-center:	Glenn Research Center
Online-source:	http://wayback.archive-it.org/1792/20100215111026/http://hdl.handle.net/2060/20050156897
Original-nasa-rights:	Unclassified; Copyright; Unlimited; Publicly available;
Updated-added-to-ntrs:	2009-07-29
Licenseurl:	http://creativecommons.org/licenses/publicdomain/
Mediatype:	texts
Rights:	Public Domain
Identifier-access:	http://www.archive.org/details/nasa_techdoc_20050156897
Identifier-ark:	ark:/13960/t9c54h33x
Ppi:	300
Ocr:	ABBYY FineReader 8.0